Počet záznamů: 1  

Platinum and platinum oxide nanoparticles generated by unipolar spark discharge

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    0519782 - ÚT 2021 RIV GB eng J - Článek v odborném periodiku
    Němec, Tomáš - Šonský, Jiří - Gruber, Jan - de Prado, Esther - Kupčík, Jaroslav - Klementová, Mariana
    Platinum and platinum oxide nanoparticles generated by unipolar spark discharge.
    Journal of Aerosol Science. Roč. 141, March (2020), č. článku 105502. ISSN 0021-8502. E-ISSN 1879-1964
    Grant CEP: GA MŠMT LM2015087; GA MŠMT(CZ) EF15_003/0000493
    Grant ostatní: AV ČR(CZ) StrategieAV21/3
    Program: StrategieAV
    Institucionální podpora: RVO:61388998 ; RVO:68378271
    Klíčová slova: platinum nanoparticles * platinum oxide nanoparticles * aerosol synthesis
    Obor OECD: Nano-materials (production and properties); Condensed matter physics (including formerly solid state physics, supercond.) (FZU-D)
    Impakt faktor: 3.433, rok: 2020
    Způsob publikování: Omezený přístup
    https://reader.elsevier.com/reader/sd/pii/S0021850219306068?token=E974A6719C2A1382BE48F8BE695E8AA683CA4CAA3D3A4DDE45D9AF3CD913917937EC625B4F7F313A38706BCBCBD902EC&originRegion=eu-west-1&originCreation=20230301114637

    Platinum nanoparticles were generated by spark discharge in forming gas (95 vol% nitrogen and 5 vol% hydrogen) and in air. An in-house developed spark discharge generator was used featuring unipolar spark discharge characteristics. Platinum nanoparticles generated in forming gas are pure platinum, crystalline, and 2-10 nm in diameter. However, spark discharge in air produces complex, 10-50 nm, amorphous, non-stoichiometric platinum oxide particles containing nano-crystals of pure platinum about 5 nm insize on the surface. Independently of the carrier gas, the produced material also contains spherical fine particles of hundreds of nanometers in diameter, which are composed of platinum only. The amount of the spherical fine particles was quantified by X-ray diffraction, resulting in about 10% and 14% wight fraction, when generated in forming gas and in air, respectively.
    Trvalý link: http://hdl.handle.net/11104/0306825

     
     
Počet záznamů: 1  

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